Improvement in book-supports



R. B. HINDLE, Bonk-Supports.

140,369, Patentedjuly1,1873.

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, back or open part of book to rest upon.

UNITED STATES PATENT OEEIGE.

ROBERT B. HINDLE, OF ST. LOUIS, MISSOURI.

-IMPROVEMENT IN BOOK-SUPPORTS.

Specification forming part of Letters Patent No. 140,369, dated July 1,1873; application tiled November 29, 1872.

To all whom it may concern:

Be it known that I, ROBERT B. HINDLE, of St. Louis, in the county ot'St. Louis and State ofMissouri, have made a certain new and usefulImproved Book-Support and I do hereby declare that the following is afull and true description thereof', reference being had to theaccompanying drawings and to the letters of reference marked thereon.

The nature thereof relates in forming an improved book-support andholder to consist of the combination ot' a standard, pivot-arms,supporting-bar, locking device, and adjustable holder, constructed andarranged to operate as will hereinafter more fully appear.

To enable those herein skilled to make and use my said improvements, Iwill now more fully describe the same, referring to- Figure 1 asaperspective view, showing the instrument in application and use. Fig. 2is a sectional detail, showing groove in adjusting-bar. Fig. 3 is a sideelevation ot' book support and holder, also indicating adjustability bydotted lines.

The invention can be formed ol' wood or metal.

A represents a standard with widened base so as to form a firm support.The standard A is united at its ends to a supporting-bar, B, by means ofpivoted arms a a. Thus the supporting-bar B can be adjusted fromvertical height in rectangular form to entirely close on top ot' thestandard A. In order, however,

to firmly secure the supporting-bar B to any position within its rangeof adjustment, I have provided said bar with swinging arms C. Further,the swinging arms C are fitted to engage a rack, D, with which the topface of standard is provided. (See Figs. 1 and 3.) The supporting-bar B,thus locked in any adjusted position, forms a firm bearing for ghe eeFig. l.) It will be noticed that the opened part of book is supportednot partially, but its entire length. To entirely rest thesupporting-bar B on top of standard A, the swinging arms C are allowedto close in a groove, c, which extends the entire length. Similarly, thetop of standard A has a partial groove, c', at both ends to allow forclosing actionof the pivoted arms a a. (See Figs. 1 and 3.) A mostdurable, reliable, and readily-adapted book-support is thus formed,holding the open part ot' book perfectly level and in an accomodatingmanner for the user.

With the book-support described a holder is provided, as follows: E is around upright, bent as shown, and carrying a slide, e, which is fittedto slide in the side grooves el e2 formed in either one or both sidesofthe supporting-bar shown in Figs. 1 and 2. The object ot' thus slidingthe upright E is to carry its tightening Vdevices to any position in thelength of the supporting-bar. F is an arm, which, by its sleevef, slideson the upright E, and can be adjustably secured thereto by itsset-screwj`1. At its end the arm F carries a threaded sleeve, f 2, inwhich operates a proper set-screw, Gr. This carries a swivel-foot, g,clearly shown .in Figs. 1 and 2. By means of its sleevef the arm Fswings freely .on its upright, 4thus enabling the user to pla-ce andsecure set-screw device on the page of book so as not to incommode.

Having thus fully described my said invention, what I claim isi Animproved book-support and holder consistingof the combination of uprightE, slide e, swinging arm F, set-screw G, swivel-foot g, supporting-barB, grooves el e2, pivoted arms a a', rack D, swinging arms C, andstandard A, all constructed to operate as and for the purpose set forth.

In testimony of said invention I have hereunto set my hand.

ROBERT E. HrNDLE.

Witnesses:

WILLrAM W. HERTHEL, A. J. HEATH.

